Support for Different Operating System/VR Headset

[MrKangs]

As documentation/the book has mentioned, the engine only support Windows operating system for VR. This limited feature blocks user who has a different operating system. We need to develop for those operating system so that we can have more user to use our engine.

At the same time, (in the current time), we only have access to certain type of VR Headsets that we cannot test every single equipment; hence, we need more developers to test out on whether the engine works for those headsets. For anyone reading this issue, if you have a different headset, please follow the instructions of the documentation/the book, and let us know by posting in this issue that it works or not. If it works, we will update the documentation/the book accordingly. If not, please post here that it is not working. If it works but it was a different approach, please post here so that we can update the documentation or people can look over to find ways to use our engine.